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Added option --inquire to PRESET_PASSPHRASE. Note that the inquired passphrase will be truncated to the first encountered null byte.

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This commit is contained in:
Ben Kibbey 2011-03-03 22:20:08 -05:00 committed by Werner Koch
parent b786f0e12b
commit 3582e2efa4
2 changed files with 30 additions and 4 deletions
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4
agent/ChangeLog
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@ -1,3 +1,7 @@
2011-03-03 Ben Kibbey <bjk@luxsci.net>
* command.c (cmd_preset_passphrase): Add option --inquire.
2011-03-03 Werner Koch <wk@g10code.com>
* gpg-agent.c: Add option --allow-loopback-pinentry.

30
agent/command.c
View File

@ -1528,25 +1528,29 @@ cmd_passwd (assuan_context_t ctx, char *line)
static const char hlp_preset_passphrase[] =
"PRESET_PASSPHRASE <string_or_keygrip> <timeout> <hexstring>\n"
"PRESET_PASSPHRASE [--inquire] <string_or_keygrip> <timeout> [<hexstring>]\n"
"\n"
"Set the cached passphrase/PIN for the key identified by the keygrip\n"
"to passwd for the given time, where -1 means infinite and 0 means\n"
"the default (currently only a timeout of -1 is allowed, which means\n"
"to never expire it). If passwd is not provided, ask for it via the\n"
"pinentry module.";
"pinentry module unless --inquire is passed in which case the passphrase\n"
"is retrieved from the client via a server inquire.\n";
static gpg_error_t
cmd_preset_passphrase (assuan_context_t ctx, char *line)
{
int rc;
char *grip_clear = NULL;
char *passphrase = NULL;
unsigned char *passphrase = NULL;
int ttl;
size_t len;
int opt_inquire;
if (!opt.allow_preset_passphrase)
return set_error (GPG_ERR_NOT_SUPPORTED, "no --allow-preset-passphrase");
opt_inquire = has_option (line, "--inquire");
line = skip_options (line);
grip_clear = line;
while (*line && (*line != ' ' && *line != '\t'))
line++;
@ -1577,17 +1581,35 @@ cmd_preset_passphrase (assuan_context_t ctx, char *line)
required. */
if (*line)
{
if (opt_inquire)
{
rc = set_error (GPG_ERR_ASS_PARAMETER,
"both --inquire and passphrase specified");
goto leave;
}
/* Do in-place conversion. */
passphrase = line;
if (!hex2str (passphrase, passphrase, strlen (passphrase)+1, NULL))
rc = set_error (GPG_ERR_ASS_PARAMETER, "invalid hexstring");
}
else if (opt_inquire)
{
/* Note that the passphrase will be truncated at any null byte and the
* limit is 480 characters. */
rc = assuan_inquire (ctx, "PASSPHRASE", &passphrase, &len, 480);
}
else
rc = set_error (GPG_ERR_NOT_IMPLEMENTED, "passphrase is required");
if (!rc)
rc = agent_put_cache (grip_clear, CACHE_MODE_ANY, passphrase, ttl);
{
rc = agent_put_cache (grip_clear, CACHE_MODE_ANY, passphrase, ttl);
if (opt_inquire)
xfree (passphrase);
}
leave:
return leave_cmd (ctx, rc);
}